diff --git a/Gemfile b/Gemfile
index b27c921..b1bd377 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rake', '~> 10.4'
+gem 'rake', '~> 12.3'
 
 group :development, :test do
   gem 'rspec', '~> 3.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index cc8e555..eeab12f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rake (10.4.2)
+    rake (12.3.3)
     rspec (3.2.0)
       rspec-core (~> 3.2.0)
       rspec-expectations (~> 3.2.0)
@@ -29,5 +29,5 @@ PLATFORMS
 
 DEPENDENCIES
   pry (~> 0.10)
-  rake (~> 10.4)
+  rake (~> 12.3)
   rspec (~> 3.2)